<?php
/**
 * Zend Framework
 * LICENSE
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 * @category Zend
 * @package Zend_Validate
 * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd New BSD License
 * @version $Id: WordCount.php 24593 2012-01-05 20:35:02Z matthew $
 */
/**
 *
 * @see Zend_Validate_File_Count
 */
require_once 'Zend/Validate/File/Count.php';

/**
 * Validator for counting all words in a file
 * @category Zend
 * @package Zend_Validate
 * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd New BSD License
 */
class Zend_Validate_File_WordCount extends Zend_Validate_File_Count {

    /**
     * #@+
     * @const string Error constants
     */
    const TOO_MUCH = 'fileWordCountTooMuch';

    const TOO_LESS = 'fileWordCountTooLess';

    const NOT_FOUND = 'fileWordCountNotFound';

    /**
     * #@-
     */
    /**
     *
     * @var array Error message templates
     */
    protected $_messageTemplates = array(self::TOO_MUCH => "Too much words, maximum '%max%' are allowed but '%count%' were counted", self::TOO_LESS => "Too less words, minimum '%min%' are expected but '%count%' were counted", self::NOT_FOUND => "File '%value%' is not readable or does not exist");

    /**
     * Defined by Zend_Validate_Interface
     * Returns true if and only if the counted words are at least min and
     * not bigger than max (when max is not null).
     * @param string $value Filename to check for word count
     * @param array $file File data from Zend_File_Transfer
     * @return boolean
     */
    public function isValid ($value, $file = null) {
        // Is file readable ?
        require_once 'Zend/Loader.php';
        if ( ! Zend_Loader::isReadable ($value)) {
            return $this -> _throw ($file, self::NOT_FOUND);
        }
        $content = file_get_contents ($value);
        $this -> _count = str_word_count ($content);
        if (($this -> _max !== null) && ($this -> _count > $this -> _max)) {
            return $this -> _throw ($file, self::TOO_MUCH);
        }
        if (($this -> _min !== null) && ($this -> _count < $this -> _min)) {
            return $this -> _throw ($file, self::TOO_LESS);
        }
        return true;
    }

    /**
     * Throws an error of the given type
     * @param string $file
     * @param string $errorType
     * @return false
     */
    protected function _throw ($file, $errorType) {
        if ($file !== null) {
            $this -> _value = $file['name'];
        }
        $this -> _error ($errorType);
        return false;
    }

}
